in terms of the biology of the planet, development is a euphemism for destruction.

On one hand, I'm an optimistic pessimist. On the other, I'm a pessimistic optimist. But while there's life, there's still hope, and I wouldn't be doing what I'm doing if I didn't think there was still hope.

It is clear to me that unless we connect directly with the earth, we will not have the faintest clue why we should save it.

You're going to have to change the priorities of your life, if you love this planet.

Every time you turn on an electric light, you are making another brainless baby.

If the corporations have their way, the Earth will be killed, and that's in your lifetime. It's revolting to me that students are being trained to work in corporations. It's obscene to me that the corporations are running the world. We've got to get cross. Anger is an appropriate emotion.

as a physician I examine the dying planet as I do a dying patient. The earth has a natural system of interacting homeostatic mechanisms similar to the human body's. If one system is diseased, like the ozone layer, then other systems develop abnormalities in function - the crops will die, the plankton will be damaged, and the eyes of all creatures on the planet will become diseased and vision impaired.